3M provides a complete line of half and full facepiece respirators. 3M™ Half Facepiece Respirators 5000 Series have permanently attached cartridges for ease of use and little or no maintenance. 3M™ Half and Full Facepiece Respirators 6000 Series are low maintenance and allow the use of replaceable cartridges and filters. 3M™ Half and Full Facepiece Respirators 7000 Series are made of silicone rubber for increased durability and can accommodate many different cartridges and filters.